Write the product in its simplest form: 7x^6 y^3 • (-7y^2)

Please explain this to me when you answer it

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.